Across
- 1. Smells like rotten eggs
- 4. All that glitters isn't _
- 6. Superman's home
- 8. "The truth is... I am ___ Man."
- 10. Lights up signs
Down
- 2. Can protect you from nuclear radiation
- 3. Used in the atomic bomb
- 5. You breathe it everyday
- 7. Paired with gold
- 9. Atomic number 49